Upender Arukonda

Founder. Building useful web apps.

About

Solo developer who builds things to solve everyday problems. Made ToolHaven from scratch, 170+ free tools and 37 browser games, no login, no ads, just open and use. Next.js, Tailwind, always building.

Badges

Tastemaker

Gone streaking

Maker History

ToolHaven180+ free calculators, tools — EMI, BMI, GST, games & more
May 2026

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Joined Product HuntMay 16th, 2026

Forums

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2d ago

ToolHaven - 180+ free calculators, tools — EMI, BMI, GST, games & more

Free online calculators and tools for everyday use - no signup, no app, no nonsense. 180+ tools covering finance (EMI, SIP, PPF, GST, salary), health (BMI, body fat, macros, calories), time, unit converters, utility tools (QR code, password generator), and 37 free games. Everything runs in your browser. No data is stored or sent anywhere.